Receiver sight for rifles



July 19 1927.

J. L. HATCHER RECEIVER SIGHT FOR RIFLES Filed Jan- 2. 1925 gli James l..- Hatcher Patented July 19, 1927.

JAMES L. HATCI-IER, OF BROOKS FIELD, TEXAS.

RECEIVER SIGHT FOR RIFLES.

Application filed January 2, 1925. Sera'l No. 194.

(GRANTED UNDER THE ACT F MARCH 3, 1883; 22 STAT. I.. 625.)

The invention described herein may be used by the Government, or any of its officers or employees in prosecution of work for the Government, or by any other person in the United States, without payment to me of any royalty thereon, in accordance with the act of March 8, 1883.

The subject of this invention is a sight intended primarily for use as a receiver sight for rifles.

lith most of the sights heretofore in general use it has been necessary to make special provision on the rifle for mounting a base plate on which the sight was mounted. This necessitated not only extra operations in making the rifle but places the rear sight at considerable distance from the eye and shortens the distance between the front and rear sights, both of which conditions are prone to lead to considerable error n aiming.

The present invention aims to overcome these defects by providing a sight which may be readily mounted on the receiver of the standard service rifle, the only operation necessary for the mounting of the sight being the drilling and tapping of a few holes in the receiver.

A still further object of the invention is the provision of a compact and efficient sight.

To these ends there is provided a base conforming to the contour of the receiver, drilled to receive the necessary retaining screws, between the side walls of which is nested a leaf having a battle sight thereon, and provided with an adjust-able peep sight for use when the leaf is raised in range shooting. The leaf is provided with elevating means for the peep sight and also with means for adjusting the leaf for windage.

lVith these and other objects in view, my invention resides in the novel arrangement and combination of parts and in the details of construction hereinafter described and claimed. it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

A practical embodiment of my invention is illustrated in the accompanying drawings, in which,

Fig. l is a fragmentary view in side elevation of the receiver portion of a riiie with a. sight constructed in accordance with the invention in place thereon, the leaf in lowered position;

Fig. 2 is a plan view of the sight with the leaf lowered, parts in section;

Fig. 3 is a transverse vertical sectiony with th-e leaf elevated;

Fig. 4 is a section on the line 4 4 of Fig. 2;

Fig. 5 is a section on the line 5-5 of Fig. 3;

Fig. 6 is a plan View of the peep sight slide;

Fig. 7 is an elevation of the same;

Fig. 8 is a view in elevation of the windagc adjustment detent and click plate;

Fig. 9 is a plan view of the leaf detaining spring;

Fig. 10 is a view in elevation of one of the windage thumb knob-s; and

Figs. 11 and l2 are front and side elevations respectively of the elevation screw detent.

In carrying out my invention, there is pro* vided al base l, which is formed to straddle the receiver 2 of the usual service rifle, the under surface of the base conforming to the contour of the receiver. This base is drilled and may be countersunk as at 3 to receive screws 4, which form a most convenient means of attachment.

The base is formed with sides 5 extending upwardly therefrom and between these sides is mounted the sight leaf 6, which, as is clearly seen in Figures l and 4, is nested between the sides when in lowered position, thus being out of the way and protected from accidental injury. The leaf is of a usual form on a diminutive scale and has slidably mounted therein a peep sight 7, preferably formed as shown with dove-tail ribs adapted to slide in dove tail grooves formed on the leaf. A half nutis formed in the slide or leaf sight as indicated at 8 to engage the threads of an elevating screw 9 mounted in the leaf. In mounting this screw it is preferred to lock the same in place by means of a retaining member 10. A convenient form of such member is shown most clearly in Figures 2, 3, l1 and 12 and consists of a strip of sheet metal stamped or otherwise formed with an angled end or nib 1l and adjacent such end is a tongue l2 struck up from the metal. The nib is adapted to enter a slight depression 13 formed in a side of the leaf andthe tongue enters an angled recess 14; also formed in the side of the leaf, the tongue being forced into such recess under pressure. At its other end the retaining member 10 is formed with an angled portion l5 adapted to overlie the ribbed thumb wheel 16 of the elevating screw` and such portion is provided With a notch 17 to receive the projecting end of the elevating screw as seen most clearly in Figures 2/ and 3. This retaining member may be formed with a rib 18 at that portion adjacent the periphery of-the thumb wheelto engage between the ribs of the wheel, the member'having sufficient resiliency to allow the wheel to turn but the engagement of the ribs serving to hold the I. wheel in set position and also by clickingpast each other indicating the extent to which the screw is being turned.

For the purpose of maintaining the leaf in the raised or lowered position a leaf spring 19 is secured to the base and engages the lower edge of the sight leaf.

The sight leaf is mounted on windage adjusting screw 2O on each end of which is secured a knurled thumb wheel 21, which wheels are journaled in the sideplates 5, as seen most clearly in Fig. This construction'is very desirable as it affords a strudy structure permitting comparatively violent blows to be administered to the thumb wheels without danger of rupturing the comparatively slight screw. lThe sight leaf is formed withV an elongated axle threaded to receive the Windage screw, and the ends of this axle are journaled in the thumb wheels. This provides a structure which takes care of blow-s on the leaf, theshock being taken up by the axle, thumb wheel and sides 5, instead of. falling directly on the windage screw. One of these wheels is provided with recesses 22 spaced angular-ly about its inner face to receive a projection formed on a spring 23 securedto'the side of the base. This serves to retain the windage screw in set position and to indicate to the operator the amount which the windage screw is being turned.

Formed on the sight leaf near the base thereof is a battle sight 24C which when the leaf is lowered is in proper position for sighting the rifle.

I claim:

1. A sight embodying a base adapted for attachment to a rifle, a leaf mounted on the base, a sight slide carried by the leaf, a screw for adjusting the sight and a retaining member for the screw adapted for attachment to the leaf and formed with an angled end to embrace the upper end of the screw and with a detent for retaining the screw in adjusted position.

2. A sight including a base, side'plates on the base, a' windage screw, a thumb wheel on each end oft age screw and journaled in the respective side plates, and a sight leaf threaded on the windage screw and journaled in the thumb wheels. 

